Valve-controller



(No Model.) 4 Sheets-Sheet 1.

G. HILL. VALVE CONTROLLER.

No. 547,434. Patented 004. 8; 1895.

WITNESSES: INVENTOR W4 4 ATTORNEYS.

AN DREW I,GRAHAM,PKUTO-UTHOVWASINNGTDNJE.

(No Model.) 4 Sheets-Sheet 2.

G. HILL. VALVE CONTROLLER.

No. 547,434. Patented Oct. 8,1895.

WlTNESSES: INVENTOR 54% J14... 4 BY RW W M ATTORNEYS.

ANDREW B.GRAHAM. PNOTO-UTNQWASKINGIOK, 0.6

(No Model.) 4 Sheets-Sheet 3.-

G. HILL.

VALVE CONTROLLER. No. 547.43 Patented 0ct.8,1895.

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WITNESSES: [NYE/(T01? M nronusrs ANDRE I GRAHAM PHUTOUY'HO WASKINGYUILDCiNo Modeljr 4 Sheets-Sheet 4. G. HILL.

VALVE'CONTROLLER.

No. 547,434. Patented Oct. 8, 1895.

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GEORGE HILL, OF NEW BRUNSWICK, NEW JERSEY.

VALVE-CONTROLLER.

SPECIFICATION forming part of Letters Patent No. 547,434, dated October8, 1895.

Application filed January 3, 1895. Serial No. 533,697. (No model) To allwhom it may concern.-

Be it known that I, GEORGE HILL, a resident of New Brunswick, Middlesexcounty, State of New Jersey, have invented certain new and usefulImprovements in Valve-Controllers, of which the following is aspecification.

My invention relates to valve-controllers, and has for its object toproduce an eflicientlyoperating electromechanical system and deirilpefor opening and closing valves and the To this end my invention consistsin the construction and arrangement hereinafter set forth and claimed.

My invention will be understood by reference to the accompanyingdrawings, in which- Figure 1 is a side elevation of a valve-controllermade in accordance with my invention, the same being shown as inclosedwithin a containing-box, one side of which box has been removed in orderto allow the mechanism to be seen. Fig. 2 is a plan view of the deviceshown in Fig. 1. Fig.3 is a diagrammatic view of a part of theapparatus, showing the circuit connections in detail; and Fig. 4 is asection of a building, showing my improvement applied thereto.

My invention has particular reference to that class of apparatus whichis designed to open and close valves in response to circuit changesproduced by a thermostat, and my improvement is specially directed toproducing a structure in which the movement of the valve-controller willbe automatically stopped when the valve has been opened to the desiredextent or completely closed, as the case may be.

In the drawings forming part hereof, A is a suitable iron box forcontaining the mechanism, which I use by preference in order to keep theparts covered and screened from outside interference.

B is a suitable electric motor, whose shaft 12 is provided with a worm,as c, which meshes with a suitably-supported pinion, as d, carried uponthe shaft 6. Carried also upon the shaft e is a pinion g, which mesheswith a gear-wheel h, carried upon a shaft 11, which is journaled in thecontaining-box or otherwise suitably supported. Carried also upon theshaft 1' is a pinion j, which meshes with the gear-wheel 0, upon whoseshaft 70 is mounted an arm a, which actuates the valve mechanism in anysuitable manner.

Mounted upon the wheel are lugs or bosses Z Z, preferably of insulatingmaterial, which, as the Wheel turns, will contact with the pivotedswitches 1 2, respectively, as will be fully hereinafter set forth.These switches 1 2 are held against their contact-pieces 3 4,respectively, by springs m, so as to make a good electrical contact.

D is an oil-cup which communicates with the bearings at the points it,0, p, p, and p by means of the tubes g and r, through which the oil forthe bearings is conveyed.

The terminal contact binding-posts of the valve-controller are numbered5, 6, and 7.

The circuits through the valve-controller are as follows: From thebinding-post 6 a wire 8 leads to one of the brushes of the motor, andfrom theother brush 0f the motor a wire 9 leads and splits into twowires 19 20, one of which 19 leads to one section A of the field-coil,which is compound-wound, the opposite terminal 10 of this sectionleading to the contact-piece 3, with which the switch 1 cooperates,which switch is connected by wire 11 with the binding-post 5. The otherwire leads to the section A of the field-coil. The other terminal 12 ofthis field-coil section A leads to contact-piece 4, which cooperateswith the switch 2, which contact-piece connects with binding-post 7 bywire 13.

T is a thermostatic switch or other circuit manipulator having thecontact-points t t and the contactarm i The contact-arm is connected tothe binding-post 6 by wire 14, in which is included a suitablebattery-source of electric current 15. The contact-point t connects withbinding-post 5 by wire 16, and contact-point t connects withbinding-post 7 by wire 17.

Fig. 4 shows one mode of application of my invention to a building. Inthis figure A is a building, having a furnace A in the cellar thereof.From this furnace a hot-air pipe A leads to a duct A", leading to themain room A of the building. A cold-air pipe A enters the side of thebuilding and joins the duct A at the point of entry therein of thehot-air pipe. A valve or damper A controls by its position the relationbetween the amount of cold and hot air admitted into the duct A, and isconnected by a link A with the arm a of the valve-controller A. Thethermostat T is located in the room A whose temperature is to becontrolled, and the usual Wires 8, 10, and 13 lead from the thermostatto the valvecontroller.

The mode of operation of my device is as follows: Suppose the parts tobe in the positions shown and itis desired to open the valve, thethermostatic contactpoints or arm are placed in such position that thevalve will be automatically opened at a predetermined time ortemperature, ormay be normally operated. We will suppose that thethermostatic contact arm has touched the thermostat contactpoint 25. Thecourse of the current will be as follows: from the battery to thebinding-post 6, thence by wire 8 through the armature of the motor, andthence by wires 9 and 19 through section A of the field by wire 10,contact-piece 3,switch 1, wire 11, binding-post 5, wire 16,0011-tact-point 15, wire let, back to the battery. This will produce arevolution of the motor and a revolution of the wheel 0 in the directionof the arrow and an adjustment of the valve by means of the rod a. Assoon as the valve has been adjusted the boss will come in contact withthe switch 1 and swing it away from its contact-piece 3, thus breakingthe circuit and stopping the motor. The circuit having been broken atthe switch 1, the thermostat contactarm t may remain against its screw tindefinitely withoutproducing any further motion of thevalve-controller.\Vhen it is desired to close the valve, which has been opened asdescribed,the thermostat contact-armis brought against the contact-pointt and the course of the current is as follows: from the battery tobinding-post 6, thence by wire 8 through the armature of the motor,thence by wires 9 and 530 through the section A of the compound windingof the field by wire 12, contact-piece 4:, switch 2, wire 13,binding-post 7, Wire 17, contact-piece t contact-arm t wire 14, back tothe battery. This will produce a revolution of the motor in a directionopposite to its revolution in the former act of operating the valve.There will be a consequent reversal of the movement of the wheel C,'andafter the valve has been moved to the desired extent the boss Z willcontact with the switch 2 and swing it away from engagement with itspressure of the boss Z the spring m will re? store it to its initialposition, so that when the thermostat contact-arm swings over to thecontact-point 25 there will be an uninterrupted circuit for the currentto traverse. By these operations the position of the valve or damper A",and consequently the hot and cold air supply to the room A can beregulated.

What I claim, and desire to secure by Letters Patent, is-

In a thermostatic valve controlling system, the combination of thefollowing instrumentalities, to-wit: athermostat having a contact armand a plurality of contact points, a motor having a single armature,atrain of gear and a plurality of circuits connected with said motor, oneof which circuits is completed through one of these contacts, the othercircuit being completed through the other contact point, a separatepivoted switch in each circuit, a valve controlling arm actuated fromthe motor by the train of gears, and a gear as C forming part of thepreviously mentioned train of gears and provided with insulated bossesfor engagement with the switches to swing the same on theirpivots,whereby when the contact arm of the thermostat is in engagementwith one contact point a rotation of the wheel 0 is had to apredetermined extent in one direction, the circuit by which said motionis accomplished being automatically broken when the predetermined extentof the motion is reached, and when the contact arm of the thermostat isin engagement with another of the contact points, a motion ofthe wheel Cin an opposite direction is had until the predetermined extent of motionis completed when the circuit by which said motion is accomplished isautomatically broken, substantially as described.

GEORGE IllLL. Witnesses:

HARRY M. TURK, Gno. E. MOORE.

